/*===================================================================*/ /* NRDF D1225 Data No.13 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,13; D#=D1225; TITLE=/VARIOUS INTERMEDIATE CHANNELS IN THE 12C+12C->12C(G.S.)+ALPHA+8BE(G.S.) REACTION/; PURPOSE=/THE 12C+12C->12C(G.S.)+ALPHA+8BE(G.S.) REACTION HAS BEEN INVESTIGATED BY 12C-ALPHA COINCIDENCE MEASUREMENTS AT INCIDENT ENERGIES OF 90, 110 AND 140 MEV. CROSS SECTIONS OF THREE KINDS OF INTERMEDIATE CHANNELS (12C+12C*, 160*+8BE AND ALPHA+20NE*) AND OF NON-RESONANT -PARTS LEADING TO THE SAME 12C(G.S.)+ALPHA+8BE(G.S.) FINAL CHANNEL HAVE BEEN DEDUCED. COINCIDENCE CROSS SECTIONS WERE REPRODUCED BY DWBA CALCULATIONS/; ATH=(S.SHIMOURA'1',A.SAKAGUCHI'1',T.SHIMODA'2',T.FUKUDA'2',K.OGURA'2', K.KATORI'2',H.OGATA'3'); INST-ATH=(2JPNKTO'1',2JPNOSA'2',2JPNRCN'3'); REF=NP/A; VLP=452(1986)123; RCTS=(12C(12C,12C,ALPHA)8BE); PHQS=(ENGY-SPEC,DSIGMA); /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,13; RCT=12C(12C,12C,ALPHA)8BE; ENR=NAT; CHM=ELM; PHYS-FORM=SLD; THK-TGT=1.1MG/CM**2; BAC=SELF; POL-TGT=0%; ALGN-TGT=0%; ACC=(CYC); INST-ACC=2JPNRCN; INC-ENGY-LAB=(90MEV,110MEV,140MEV); CHRG-INC-ION=+4; POL-PRJ=0%; DET-PARTCL=(ALPHA'4',12C'5'); COINC=(ALPHA'4',12C'5'); ANT-COINC=NO; DET-SYS=(SSD'4,5',CNTR-TLSCP'4,5',X'5,6'); /*@3@*/ SOLID-ANGL=(6MSR'4',33MSR'4',130MSR'4',12MSR'5'); ANL=(DWBA); PHQ=(ENGY-SPEC,DSIGMA); /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,13; INC-ENGY-LAB=90MEV; /*@10@*/ J-PTY=7-'13'; /*@11@*/ THTC=4.5DEG'14'; /*@12@*/ SYS-ERR=<20%; /*FIG.3-(10)*/ /* D1225 FIG.3-(10) */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC'11' DSIGMA'12' DELTA-DSIGMA'12' (DEG) (UB/SR/SR) (UB/SR/SR) 27.191 2.269E+02 +1.007E+02-6.971E+01 30.331 7.308E+01 +3.245E+01-3.916E+01 33.089 8.096E+02 +1.795E+02-1.683E+02 36.121 7.098E+02 +1.289E+02-1.479E+02 40.019 6.022E+02 +1.331E+02-5.768E+01 42.638 4.467E+02 +8.113E+01-5.583E+01 45.761 1.700E+02 +4.469E+01-5.618E+01 57.028 1.004E+02 +1.057E+01-2.849E+01 60.379 2.478E+02 +7.575E+01-1.607E+01 62.890 5.003E+02 +XXXXXXXXX-XXXXXXXXX 66.737 6.773E+02 +XXXXXXXXX-XXXXXXXXX 69.769 5.938E+02 +XXXXXXXXX-XXXXXXXXX 71.533 4.118E+02 +XXXXXXXXX-XXXXXXXXX 75.446 3.057E+02 +XXXXXXXXX-XXXXXXXXX 78.496 2.268E+02 +XXXXXXXXX-XXXXXXXXX 81.452 4.009E+02 +XXXXXXXXX-XXXXXXXXX 83.989 6.407E+02 +XXXXXXXXX-XXXXXXXXX 87.854 7.340E+02 +XXXXXXXXX-XXXXXXXXX 90.415 9.288E+02 +XXXXXXXXX-XXXXXXXXX 93.455 7.617E+02 +XXXXXXXXX-XXXXXXXXX 96.523 4.783E+02 +XXXXXXXXX-XXXXXXXXX 99.563 3.923E+02 +XXXXXXXXX-XXXXXXXXX 102.541 5.674E+02 +XXXXXXXXX-XXXXXXXXX 105.975 6.499E+02 +XXXXXXXXX-XXXXXXXXX 108.540 7.953E+02 +XXXXXXXXX-XXXXXXXXX 111.518 1.150E+03 +XXXXXXXXX-XXXXXXXXX 114.554 9.754E+02 +XXXXXXXXX-XXXXXXXXX 117.590 8.271E+02 +XXXXXXXXX-XXXXXXXXX 119.778 6.134E+02 +XXXXXXXXX-XXXXXXXXX 123.705 3.985E+02 +4.209E+01-3.797E+01 126.722 3.993E+02 +5.702E+01-3.794E+01 129.679 7.055E+02 +1.281E+02-6.722E+01 132.204 1.246E+03 +XXXXXXXXX-XXXXXXXXX 202.718 7.401E+03 +XXXXXXXXX-XXXXXXXXX 204.895 6.066E+03 +XXXXXXXXX-XXXXXXXXX 208.800 4.815E+03 +XXXXXXXXX-XXXXXXXXX 210.593 2.557E+03 +XXXXXXXXX-XXXXXXXXX 213.636 2.028E+03 +XXXXXXXXX-XXXXXXXXX 217.053 2.745E+03 +XXXXXXXXX-XXXXXXXXX 220.099 2.106E+03 +XXXXXXXXX-XXXXXXXXX 223.548 2.110E+03 +XXXXXXXXX-XXXXXXXXX 225.736 1.565E+03 +XXXXXXXXX-XXXXXXXXX 230.065 1.328E+03 +XXXXXXXXX-XXXXXXXXX 231.837 8.616E+02 +XXXXXXXXX-XXXXXXXXX 235.336 5.412E+02 +7.729E+01-3.494E+01 238.300 8.945E+02 +XXXXXXXXX-XXXXXXXXX 241.310 9.582E+02 +XXXXXXXXX-XXXXXXXXX 244.357 7.351E+02 +XXXXXXXXX-XXXXXXXXX 247.389 6.445E+02 +XXXXXXXXX-XXXXXXXXX 250.443 4.625E+02 +XXXXXXXXX-XXXXXXXXX 253.058 3.547E+02 +XXXXXXXXX-XXXXXXXXX 256.529 2.910E+02 +XXXXXXXXX-XXXXXXXXX 259.478 5.497E+02 +XXXXXXXXX-XXXXXXXXX 262.453 8.221E+02 +XXXXXXXXX-XXXXXXXXX 265.449 1.006E+03 +XXXXXXXXX-XXXXXXXXX 268.495 7.720E+02 +XXXXXXXXX-XXXXXXXXX 271.545 5.728E+02 +XXXXXXXXX-XXXXXXXXX 274.596 4.250E+02 +XXXXXXXXX-XXXXXXXXX 277.718 1.618E+02 +2.311E+01-4.198E+01 280.218 3.610E+02 +6.568E+01-7.522E+01 283.627 5.223E+02 +9.503E+01-6.528E+01 286.616 6.835E+02 +XXXXXXXXX-XXXXXXXXX 290.123 4.016E+02 +5.736E+01-5.019E+01 293.137 4.161E+02 +1.273E+02-1.374E+02 296.234 2.001E+02 +1.300E+02-1.161E+02 298.814 2.142E+02 +4.757E+01-6.083E+01 302.154 5.843E+02 +XXXXXXXXX-5.567E+01 304.784 3.922E+02 +5.613E+01-1.019E+02 307.802 3.929E+02 +8.711E+01-7.122E+01 311.631 6.285E+02 +2.202E+02-4.075E+01 314.269 3.946E+02 +1.038E+02-8.221E+01 317.275 4.370E+02 +1.152E+02-1.024E+02 320.206 9.754E+02 +XXXXXXXXX-XXXXXXXXX 323.652 1.011E+03 +XXXXXXXXX-XXXXXXXXX 326.282 6.783E+02 +9.710E+01-1.043E+02 329.397 2.760E+02 +9.671E+01-6.462E+01 332.817 3.613E+02 +1.429E+02-1.273E+02 \END; /*===================================================================*/ |